//
//  WBHomeViewController.swift
//  tom微博
//
//  Created by tom king on 2017/8/15.
//  Copyright © 2017年 tom king. All rights reserved.
//

import UIKit

// 定义全局常量，尽量用 private 修饰 以避免到处可以访问
private let cellId = "cellId"
class WBHomeViewController: WBBaseViewController {
    
    /// 列表数据模型
   lazy var listViewModel = WBStatusListViewModel()
    
    /// 加载数据
    override func loadData() {
        print("准备刷新，最后一条数据\(self.listViewModel.statusList.last?.text ?? " ")")
        listViewModel.loadStatus(pullup: self.isPullup) { (isSuccess, shouldRefresh) in
    
            print("加载数据结束")
            
            // 结束刷新控件
            self.refreshControl?.endRefreshing()
            
            // 恢复上拉刷新标记
            self.isPullup = false
            
            // 刷新表格
            if shouldRefresh {
                 self.tableView?.reloadData()
            }
           
        }
    }
    
    /// 显示好友
    func showFriends(){
        print(#function)
        let vc = WBDemoViewController()
        //vc.hidesBottomBarWhenPushed = true
        navigationController?.pushViewController(vc, animated: true)
        
    }
}

// MARK: - 表格数据源方法  具体的数据源方法实现 不需要 super
extension WBHomeViewController{

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return listViewModel.statusList.count
    }
    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        // 1、取 cell
        let cell = tableView.dequeueReusableCell(withIdentifier: cellId, for: indexPath)
        
        // 2、设置 cell
        cell.textLabel?.text = listViewModel.statusList[indexPath.row].text
        
        // 3、返回 cell
        return cell
    }
}

// MARK: - 设置界面
extension WBHomeViewController{
    
    /// 重写父类方法
    override func setupTableView() {
        
        super.setupTableView()
        
        // 设置导航栏按钮
        navItem.leftBarButtonItem = UIBarButtonItem(title: "好友", target: self, action: #selector(showFriends))
        
        // 注册原型 cell
        tableView?.register(UITableViewCell.self, forCellReuseIdentifier: cellId)
        
        setupNavTitle()
    }
    /// 设置导航栏标题
    private func setupNavTitle() {
        
        let title = WBNetworkManager.shared.userAccount.screen_name
        let button = WBTitleButton(title: title!)
        
        navItem.titleView = button
        
        button.addTarget(self, action: #selector(clickTitileButton), for: .touchUpInside)
    }
    
    @objc func clickTitileButton(btn:UIButton) {
        // 设置选中状态
        btn.isSelected = !btn.isSelected
    }
}
